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Finding the Fourth Proportional to 385.08, 574.82 and 336.48

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Solution

The fourth proportional to 385.08, 574.82 and 336.48 is: 502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.08 : 574.82 = 336.48 : x
  2. Step 2: Convert to fraction form
    385.08/574.82 = 336.48/x
  3. Step 3: Cross multiply
    385.08x = 574.82 × 336.48
  4. Step 4: Simplify right side
    385.08x = 193,413.75
  5. Step 5: Solve for x
    x = 193,413.75/385.08
  6. Step 6: Final answer
    x = 502.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.